Eravikulam Wildlife Sanctuary is a sanctuary set up for the preservation of the endangered Nilgiri Tahr. The main inhabitant of the park is Nilgiri Tahr

the park has the largest known population of Tahr's existing in the world. The park also shelters Atlas Moth, Elephants, Sambhar's, Gaurs, Lion-tailed Macaque, Nilgiri, Langur, Tigers and Leopards.
Spread across an area of 97 sq. kms, the park exhibits the breathtaking natural splendor of rolling grasslands and exotic flowers. Anamudi, the highest peak south of Himalayas, towers over the sanctuary in majestic pride. The Atlas Moth, largest of its kind in the world, is a unique possession of the park.
Wildlife in Eravikulam National Park: The main inhabitant of the Eravikulam park is Nilgiri Tahr. Now the park has the largest known population of Tahrs existing in the world. The park also sheltersgaur, indian muntjac, sambar deer, golden jackal, jungle cat, wild dog, dhole, leopard, tiger, nilgiri langur, stripe-necked mongoose, indian porcupine, nilgiri marten, small clawed otter, ruddy mongoose, and funambulus sublineatus|dusky striped squirrel
Birding in Eravikulam National Park: 132 species of birds have been recorded which include endemics like Black-and-orange Flycatcher, Nilgiri Pipit, Nilgiri Wood Pigeon,Yellow-Throated Marten, White Bellied Shortwing, Nilgiri Verditer Flycatcher and Kerala Laughingthrush.
Flora in Eravikulam National Park:
Three major types of plant communities are found in the Park - grasslands, shrublands and forests. The terrain above 2000m is covered primarily by grasslands. However, there are numerous small patches of forests in hollows and gullies in these areas. The deeper valleys are extensively forested. Shrublands predominate along the bases of the cliffs and interspersed in rocky slab areas. The antibacterial Eupatorium glandulosum is found here.